Question

Pocket money (in ) received by 7 students are 78,82,76,84,80,72,74
Find the range and also find the mean.​

Answer 1

= -

= 84 - 72

= 8

= 78 + 82 + 76 + 84 + 80 + 72 + 74

7

= 546

7

= 78

= 8 , = 78

Answer 2

Answer:

Range- 12

mean=78

Explanation:

• range-84,82,80,78,76,74,72
• biggest no.-smallest no.
• biggest no.-84
• smallest no.-72

so, range= 84-72

=12

now, mean

= 84+82+80+78+76+74+72 ➗ 7

= 546 ➗ 7

= 78

extra information-

1. range - The Range is the difference between the lowest and highest value

2.mean- It is the sum (total) of all the values in a set of data, such as numbers or measurements, divided by the number of values on the list.

I hope it helps you.